---
id: mac-storage-basics.why-does-my-mac-sync-my-iphone-automatically
url: https://storagestudio.us/faq/mac-storage-basics/why-does-my-mac-sync-my-iphone-automatically
category: "Mac storage basics"
subcategory: "iPhone and iPad backups and updates"
question: "How do I stop my Mac backing up or syncing my iPhone every time I plug it in?"
alt_questions:
  - "stop automatic iphone sync mac"
  - "finder auto sync iphone"
  - "prevent iphone backup when connected"
  - "automatically sync when this iphone is connected"
  - "iphone backs up to mac by itself"
short_answer: "Select the iPhone in Finder and untick Automatically sync when this iPhone is connected on the General tab, then Apply. Back up manually with Back Up Now when you want."
tags: ["iphone", "finder", "sync"]
related: ["https://storagestudio.us/faq/mac-storage-basics/how-do-i-delete-old-iphone-backups-on-a-mac", "https://storagestudio.us/faq/mac-storage-basics/should-i-back-up-my-iphone-to-icloud-or-my-mac"]
applies_to: "all"
last_reviewed: 2026-10-01
---

# How do I stop my Mac backing up or syncing my iPhone every time I plug it in?

Connect the iPhone, select it in Finder's sidebar, and on the **General** tab untick **Automatically sync when this iPhone is connected**. Then click **Apply**.

You can still back up manually with **Back Up Now** whenever you choose, which keeps backups from quietly piling up on a Mac that's short of space.